npm的scripts的使用

一个命令相当于执行两个命令

{
  "name": "npm-test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    // 直接就是在npm start,可以就是先npm i,然后在npm run serve
    "start": "npm run install-missing-dependencies && npm run serve",
    "install-missing-dependencies": "npm i",
    "serve": "http-server"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "http-server": "^14.1.0"
  }
}

1. 关键代码:

// 直接就是在npm start,可以就是先npm i,然后在npm run serve
    "start": "npm run install-missing-dependencies && npm run serve",
    "install-missing-dependencies": "npm i",